| /* |
| * Copyright 2010 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| * use this file except in compliance with the License. You may obtain a copy of |
| * the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| * License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| package com.google.gwt.uibinder.elementparsers; |
| |
| import com.google.gwt.core.ext.UnableToCompleteException; |
| import com.google.gwt.core.ext.typeinfo.JClassType; |
| import com.google.gwt.core.ext.typeinfo.JType; |
| import com.google.gwt.core.ext.typeinfo.TypeOracle; |
| import com.google.gwt.resources.client.ImageResource; |
| import com.google.gwt.uibinder.rebind.UiBinderWriter; |
| import com.google.gwt.uibinder.rebind.XMLElement; |
| |
| /** |
| * Custom parsing of Image widgets. Sets ImageResource via constructor, because |
| * {@link com.google.gwt.user.client.ui.Image#setResource Image.setResource} |
| * clobbers most setter values. |
| */ |
| public class ImageParser implements ElementParser { |
| |
| public void parse(XMLElement elem, String fieldName, JClassType type, |
| UiBinderWriter writer) throws UnableToCompleteException { |
| if (hasImageResourceConstructor(writer.getOracle(), type)) { |
| String resource = elem.consumeImageResourceAttribute("resource"); |
| if (null != resource) { |
| writer.setFieldInitializerAsConstructor(fieldName, resource); |
| } |
| } |
| } |
| |
| private boolean hasImageResourceConstructor(TypeOracle typeOracle, |
| JClassType type) { |
| JType imageResourceType = typeOracle.findType(ImageResource.class.getName()); |
| return type.findConstructor(new JType[] {imageResourceType}) != null; |
| } |
| } |